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In software engineering, the initialization-on-demand holder ( design pattern) idiom is a lazy-loaded singleton. In all versions of Java, the idiom enables a safe, highly concurrent lazy initialization of static fields with good performance. [1] [2] The implementation of the idiom relies on the initialization phase of execution within the Java ...
A class diagram exemplifying the singleton pattern. In software engineering, the singleton pattern is a software design pattern that restricts the instantiation of a class to a singular instance. One of the well-known "Gang of Four" design patterns, which describes how to solve recurring problems in object-oriented software, [1] the pattern is ...
The following is a list of people executed by the U.S. state of Alabama since capital punishment was resumed in the United States in 1976. All of the 74 people (73 men and 1 woman) have been executed at the Holman Correctional Facility, near Atmore, Alabama. All executions between December 2002 and 2023 were conducted by lethal injection.
Mary Lou York, 19. Date. June 1, 1979. Charles Laverne Singleton (March 29, 1959 – January 6, 2004) was an American convicted murderer, who, at the time of his execution, lived on death row in Arkansas longer than any other state inmate. [1] He was executed in 2004 for the June 1, 1979, murder of 19-year-old Hamburg store owner Mary Lou York.
The designers chose to address this problem with a four-step solution: 1) Introducing a compiler switch that indicates if Java 1.4 or later should be used, 2) Only marking assert as a keyword when compiling as Java 1.4 and later, 3) Defaulting to 1.3 to avoid rendering prior (non 1.4 aware code) invalid and 4) Issue warnings, if the keyword is ...
In software engineering, double-checked locking (also known as "double-checked locking optimization") is a software design pattern used to reduce the overhead of acquiring a lock by testing the locking criterion (the "lock hint") before acquiring the lock.
In response, Singleton filed several petitions for post-conviction relief, often the last option to overturn a conviction. He asserted incompetency for execution, but was denied by several courts ...
This new method required executions to be moved from local jails to a permanent execution chamber in state prison facilities. Despite an early challenge in July 1929 by the circuit court of Union County over the prison superintendent being named a secondary executioner (as he was not elected or appointed), the electrocution law was held up by ...